From AP - News Local/State -

Illinois Sen. Kirk Dillard To Resign In July

An Illinois state senator says he'll resign in July before becoming chairman of the Regional Transportation Authority.

Hinsdale Republican Sen. Kirk Dillard was elected to the post Wednesday.

He says he needs time to transition into his new position and calls the exit from more than 20 years in the Legislature "bittersweet.'' He made two unsuccessful Republican primary bids for governor.
 
Dillard, who is also an attorney, says he has already begun work with the RTA. The position officially takes effect Aug. 1.
 
The RTA provides financial oversight for the Chicago Transit Authority, Metra and Pace. He says he has a unique perspective in understanding the region's transportation issues.
 
Dillard says he doesn't know who will be appointed to take his seat after he officially resigns.